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Appealing Your Property Tax Assessment in Iowa

Deadlines and steps to appeal a property tax assessment in Iowa, and when property taxes are due.

Short answer: A dissatisfied property owner may file a written protest with the local board of review, on forms prescribed by the Director of Revenue, from April 2 through April 30 of the assessment year (extended to May 1 to June 5 in declared disaster areas). Iowa Code § 441.37

Appealing your assessmentA dissatisfied property owner may file a written protest with the local board of review, on forms prescribed by the Director of Revenue, from April 2 through April 30 of the assessment year (extended to May 1 to June 5 in declared disaster areas). Grounds are limited to inequity compared with similar property, assessment above the value allowed by law, the property not being assessable or being exempt or misclassified, an error, or fraud or misconduct. An oral hearing may be requested in writing when the protest is filed. The statute also refers to further appeals to the Property Assessment Appeal Board and district court.
Property Assessment Appeal Board: https://paab.iowa.gov (linked from the Department of Revenue's homestead page)
When property taxes are dueProperty taxes are paid in two semiannual installments, in September and March. The first installment becomes delinquent if not paid before October 1 and the second if not paid before April 1 (moved to the second business day of the month when the last day of September or March falls on a weekend).

More Iowa property tax & homestead exemptions

FAQ

How do you appeal a property tax assessment in Iowa?
A dissatisfied property owner may file a written protest with the local board of review, on forms prescribed by the Director of Revenue, from April 2 through April 30 of the assessment year (extended to May 1 to June 5 in declared disaster areas). Grounds are limited to inequity compared with similar property, assessment above the value allowed by law, the property not being assessable or being exempt or misclassified, an error, or fraud or misconduct. An oral hearing may be requested in writing when the protest is filed. The statute also refers to further appeals to the Property Assessment Appeal Board and district court.
When are property taxes due in Iowa?
Property taxes are paid in two semiannual installments, in September and March. The first installment becomes delinquent if not paid before October 1 and the second if not paid before April 1 (moved to the second business day of the month when the last day of September or March falls on a weekend).

General legal information, not legal advice. Laws change and local rules can differ; check the linked official source or talk to a lawyer about your situation.